Table 1.
Donor characteristics (n = 114).
| Characteristic | |
|---|---|
| Age (years) | 35.6 (32.9, 38.7) |
| Weight (kg) | 60.5 (55.2, 70.6) |
| Height (cm) | 164.1 (6.5) |
| Pre-pregnancy BMI (kg/m2) | 22.1 (20.6, 24.8) |
| Pre-pregnancy BMI (kg/m2) category | |
| Underweight (<18.5) | 4 (3.5%) |
| Normal (18.5–24.9) | 84 (73.7%) |
| Overweight (25–29.9) | 15 (13.2%) |
| Obese (≥30) | 11 (9.6%) |
| Current BMI (kg/m2) | 22.9 (21.1, 25.1) |
| Current BMI (kg/m2) category | |
| Underweight (<18.5) | 4 (3.5%) |
| Normal (18.5–24.9) | 81 (71.1%) |
| Overweight (25–29.9) | 16 (14.0%) |
| Obese (≥30) | 13 (11.4%) |
| Gestational weight gain (kg) | 11.3 (9.0, 14.0) |
| Postpartum weight retention (kg) | 1.0 (−0.6, 2.5) |
| Number of living children | |
| 0 a–1 | 63 (55.3%) |
| 2 | 39 (34.2%) |
| ≥3 | 12 (10.5%) |
| Country of origin: Spain | 102 (89.5%) |
| Education level | |
| Secondary studies | 2 (1.8%) |
| Technical studies | 14 (12.3%) |
| University studies | 98 (86.0%) |
| Currently working | 50 (43.9%) |
| Physical activity | |
| Sedentary | 26 (22.8%) |
| Low activity | 60 (52.6%) |
| Active/very active | 28 (24.6%) |
| Tobacco consumption | |
| Previously | 28 (24.6%) |
| Currently | 1 (0.9%) |
| Passive smoking | 24 (21.1%) |
| Active smoking | 1 (0.9%) |
| Alcohol consumption | |
| Prior to pregnancy | 55 (48.2%) |
| During pregnancy | 1 (0.9%) |
| Currently | 4 (3.5%) |
| Season during the study | |
| Spring | 30 (26.3%) |
| Summer | 16 (14.0%) |
| Autumn | 42 (36.8%) |
| Winter | 26 (22.8%) |
Quantitative variables are expressed as means (standard deviations) when they were distributed parametrically and as medians (25th and 75th percentiles) when they were distributed non-parametrically. Qualitative variables are presented as the absolute and relative frequencies (%). a A fetal death at 22+6 weeks of gestational age and 450 g birthweight. Abbreviations: BMI, body mass index.